step-relative

Noun

steprelative (plural steprelatives)

1. Any person identified as a non-blood relative but who is related through the marriage of a parent.
   • Psychiatrists continue to struggle with the psychological definitions of the incest taboo, rather than with the social conditions which create the present high incidence of steprelative sex relationships.1970, Margaret Mead, “Anomalies in American Postdivorce Relationships” (chapter 5), in Paul Bohannan, editor, Divorce and After, Doubleday & Company, Inc., page 110

   Synonyms:

   steprelation